* Rewrite routine for building the My Cards hierarchical list
* Use a separate publication for retrieving My Cards
* Fix bug with limit and skip projectsion
Some pages use relative links such as boards link at the home page.
Others use absolute url such as cards in boards' lists.
This commits goal is to allow for consistent use of relative
urls.
Origin relative URLs also helps decoupling Wekan from the infrastructure
it's deployed on. i.e if it's being served, it should work.
* add spinner while pages are loading
* use a single publication for My Cards
* add Due Cards to the user menu
* add description to the All Users option for Due Cards
* some code clean-up
* Add cards due view
* Add input for selecting sort (not working)
* Add methods to `Utils` to save sort to local browser storage
* CSS updates to make lists display horizontally within swimlanes
* rename `findCards()` to `myBoards()`
* return model objects for Boards, Swimlanes, Lists, and Cards.
Previously created a data structure with limited properties.
* Sort the myBoards data structure according to the `sort` property
* add a `swimlane()` method in the cards model
* make the page more visually pleasing
* user +viewer to display Markdown in titles
* modify `colorClass()` in Lists model to return 'list-header-{color}'
* modify `colorClass()` of Swimlanes model to return 'swimlane-{color}'
